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Effect of Curing on Soil Stabilised with Egg Shell


Tess Liya Justine , Amal Jyothi College of Engineering; Karthika Prasad, Amal Jyothi College of Engineering; Nissy Mathachan, Amal Jyothi College of Engineering; Prabhu. P. James, Amal Jyothi College of Engineering


Unconfined compressive strength, volumetric shrinkage strain, eggshell powder


Clayey soils are widely used for most of the construction projects. They are soft soils and have good plastic properties so that increased moisture results in their decreased shear strength, compressive strength and volume changes. Considering millions of tons of waste produced annually across the country, which not only poses the problem of disposal but also adds to environmental contamination and health risks, utilization of such refuse and industrial wastes and their subsidiary products as alternatives to construction materials may effectively contribute to environmental preservation and minimization of their adverse effects on the environment. In the present study, eggshell powder was used as waste, to combine with soil so that the properties of clay soil were investigated in different mixture proportions. This study is aimed at determining the increase in unconfined compressive strength of kuttanad clay, by testing it after placing the sample for a curing period of 0 ,4 ,7 days. Curing period refers to the time period between the point of making the mould and finally testing it. Also the geotechnical properties and volumetric shrinkage strain of Kuttanad clay were tested in this study. From this study, eggshell powder can be used to significantly improve the strength of soil. The result of unconfined compressive test with eggshell as an stabilizing agent at varying percentage (10%, 15%, 20%) after 0, 4, 7 days each showed that the strength increases at 15% after 7 days curing which is the optimum value and reduces at 20%. For each value of optimum moisture content determined from the standard proctor test a sample was prepared using the same proctor mould after compacting each layer, after which it was extruded out of this mould and its dimensions were measured. The change in the dimensions was noted after a period of 4, 7 days. Minimum volume change was observed at 15% which is found to be the optimum percentage.

Other Details:

Manuscript Id :IJSTEV2I12022
Published in :Volume : 2, Issue : 12
Publication Date: 01/07/2016
Page(s): 259-264
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